.top{
    width: 500px;
    height: 500px;
    background-color:skyblue;
    text-align:center;
}
.banner{
    width: 1200px;
    margin: 0 auto;
    height: 1000px;
    margin-top:20px;
    text-align:center; 
    border:none; 
    background:none;
}
.banner .b_top{
    border:none;
    width: 100%;
    height: 320px;
    position:relative;
}
.banner .b_top .t{
    top:80px;
    left:100px;
    position: absolute;
}
.banner .b_top .t_t{
    border:none;
    width: 210px;
    height: 150px;
    text-align:center;
    font-size:14px;
    z-index:3;
    background:none;
    line-height:30px
}
.banner .b_top .k{
    position: absolute;
    top:80px;
    width: 180px;
    right:100px;
}
.banner .b_top .k button{
  border:none;
  background:none;
  cursor:pointer;
  outline:none;
  color:#c57d5c;
}
.banner .b_top .t_t p{
    font-size:16px;
}
.banner .b_t{
  margin-top:20px;
  position:relative;
  width: 100%;
  height: 90px;
  border:none;
  background-color:#dfcbc5;
}
.banner .b_t img{
    position: absolute;
    top:-20px;
    margin-left:-68px;
}
.banner .b_t p{
    position: absolute;
    top:40px;
    left:49%;
    color:#fff;
    z-index:2;
}
.banner .b_k{
    width: 100%;
    height: 450px;
    border:none;
    margin-top:30px;
}
.banner .b_k .b_left{
    float:left;
    width: 400px;
    height: 450px;
    position:relative;
    border:none;
    overflow:hidden;
}
.banner .b_k .b_left img{
    transition:all 1s;
}
.banner .b_k .b_left:hover img{
    transform:scale(1.1);
    transition:all 1s;
}
.banner .b_w{
    border:none;
    width: 100%;
    height: 50px;
   line-height:50px;
    background-color:#dfcbc5;

}
